Duration
Instructor led training , conducted on regular and on Fast track program.Contact us.
Overview
- Differences between Fixed and Mobile WiMAX technology will be studied. The related layer 1 and 2 protocol functions are dealt with in detail.
- Relevant radio propagation and physical layer characteristics, in different deployment scenarios will be presented.
- WiMAX deployment and roll out strategies will be studied
- Advanced techniques and their performance will be discussed (beam forming, space-time coding, MIMO, different handover schemes).
What you will gain
- Understand up to date end to end technology of both mobile and fixed WiMAX technology.
- Features of the technology those are relevant for system performance, planning and deployment.
- The participants will learn about performance enhancement and optimization techniques.
- They will be able to address real-world problems of the WiMAX deployment and future enhancements.
Pre requisites
A strong knowledge of wireless communication systems is required.
Who should attend?
- Technical managers who want to learn and understand the benefits and potential issues with Fixed and Mobile WiMAX.
- Development and radio network engineers who require a good knowledge of the WiMAX technology.
Course outline
1. Introduction
- Wireless Standards Overview
- 802.16 Standard Timeline
- 802.16 Standard Characteristics
- WiMAX Forum
- WiMAX Profiles
- WiMAX and ITU
2. Radio Propagation Overview
- Wireless Channel
- Path Loss
- Shadowing
- Multipath and Frequency Selectivity
- Temporal Variations and Doppler Spread
- Line-of-Sight (LOS) vs. Non-Line-of-Sight (NLOS)
- Angle of Arrival and Departure
- Antenna Parameters
- Power Levels in dBm and Watts
- Sources of Noise, Bandwidth and Frequency
3. WiMax Principles
- OFDM vs. Single Carrier
- Frequency and Temporal Diversity
- TDD vs. FDD
- RF Front-End
- Network Topologies
4. WiMax Physical Layer
- Fixed WiMAX
- OFDM Parameters
- TDD Frame Content
- Contention Access
- Channel Coding and Modulation
- Measurements
- Link Adaptation
- Mobile WiMAX
- Scalable OFDMA
- Permutations
- Bins, Sub channels, Tiles, Slots
- HARQ
- Frequency Reuse
- Handover
- Multicast and Broadcast Services
- MAC Layer Overview
5. HSDPA and HSUPA
- HSDPA features
- Transmission time interval
- Channelisation codes
- Resource sharing
- Modulation
- Turbo channel coding and soft bits
- Hybrid ARQ
- Channel quality indicator
- Multi-user scheduling
- Mobile terminal categories
- MAC-hs
- Power allocation
6. WiMAX Access Procedures
- QoS Enforcement
- Network Entry
- Ranging
- Registration
- Bandwidth Requests
- DL-MAP and UL-MAP Message
- Mobility Procedure
7. WiMAX Radio Network Planning
- Link Budget Analysis
- Equipment Specification
- Antenna Patterns
- Required SNR
- Multiple Antennas Gains
- Permutations Effects
- Coding Schemes Gains
- Coverage
- Coverage for preamble and DL/UP-MAP
- Capacity
- Path Loss Models
- Shadowing
- Frequency Reuse and Planning
- Sectorization
- Antenna Pointing and Orientation
8. WiMAX Radio Planning, contd.
- Effect of Terrain and Clutter
- Optimizing for Different QoS Classes
- LOS vs. NLOS
- Fresnel Zone for LOS
- Case Studies for Pico-, Micro- and Macro-Cells
- Peak and Average Data Rate Analysis (User and Sector Throughputs)
- Uplink and Downlink Balancing
- Delay Spread and Guard Time
- System Simulations Approach
- Overview of Commercial Tools
9. WiMAX Enhancements and Optimization
- Space-Time Coding (STC)
- Beam forming
- MIMO
- Uplink Sounding
- Collaborative MIMO
- Repeaters (FDD vs. TDD issues)
- Effects of the Improvements on System Performance and Margins (Throughput, Capacity and Coverage)
10. WiMAX Deployment
- When to Use Fixed or Mobile WiMAX
- Green-Field Deployment
- 2G or 3G Upgrade
- Selecting and Optimizing Type of Handover
- Optimizing for VoIP
- Optimizing for Different QoS Classes
- Backhaul Overview
- Backhaul Dimensioning
11. Miscellaneous
- Miscellaneous Practical Topics
- Installation and Maintenance Testing
- Error Vector Magnitude
- Adjacent Channel Power Ratio
- Mobile WiMAX Release 1 Profiles